Date: Wed, 23 Jul 2008 20:44:50 +0200 From: Roman Divacky <rdivacky@FreeBSD.org> To: "Sean C. Farley" <scf@FreeBSD.org> Cc: freebsd-emulation@FreeBSD.org Subject: Re: kern/122318 (CMake core dumping, chroot exiting) Message-ID: <20080723184450.GA25356@freebsd.org> In-Reply-To: <alpine.BSF.1.10.0807231236140.12600@thor.farley.org> References: <alpine.BSF.1.10.0807231236140.12600@thor.farley.org>
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On Wed, Jul 23, 2008 at 12:50:51PM -0500, Sean C. Farley wrote: > I am seeing if anyone has any insight on this PR (kern/122318[1]). It > would be nice to once again build using cmake within a Linux chroot. :) > > Basically, the bug is that not only that cmake is dumping core; it is > also forcing the user out of the chroot environment. Here is the > command used to start the chroot: > /compat/linux/usr/sbin/chroot <chroot path> su - <build user> > > Thank you. > > Sean > 1. http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/122318 looking at the trace you provided I guess this is what's going on: cmake forks/execs gcc and waits to be notified about the success of the command it tried, the notification comes (the SIGCHLD) the handler tries do something and then returns and now something is wrong and it receives the SIGSEGV.. or am I wrong and linux_ktrace does not translate signals and the SIGCHLD is in fact SIGTSTP? what is the fd 3 and 4? can you provide full ktrace.out? thnx, roman
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